Murray, George, editor. With a Preface by Sir Clements R. Markham…, Presented to the Expedition by the Royal Geographical Society. London: Royal Geographical Society, 1901.
1901-04 British National Antarctic Expedition (Scott aboard Discovery).
Antarctic Reading: Expeditions
p. vii: Baron Nordenskiöld has told me that, during the voyage of the Vega, when the North-East Passage was discovered, the books most in request were the “blue book” and the “white book,” as they called the Arctic manuals.